Caliber Number
6R31
Movement Type
Automatic with manual winding
Precision
+25 to -15 seconds per day
Power reserve
Approx. 70 hours
Jewels
24
Functions
Stop seconds hand function

Case/Band

Case Material
Stainless steel
Case Size
Thickness:12.4mm
Diameter:40.5mm
Lug-to-lug:48.8mm
Crystal
Dual-curved sapphire crystal
Crystal Coating
Anti-reflective coating on inner surface
Clasp
Three-fold clasp with push button release
Distance between lugs
20

Other Details

Water Resistance
10 bar
Weight
87.0g
Features
See-through case back
Screw case back
Arita Porcelain Dial
See-through & Screw case back